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In this undated handout photo from Tasmania's Department of Primary Industries, a Tasmanian Devil is seen suffering from a deadly disease that is driving the carnivorous marsupial toward possible extinction. Fierce as they are, Tasmanian devils can't beat a contagious cancer that threatens to wipe them out. Now scientists think they've found the disease's origin, a step in the race to save Australia's snarling marsupial. (AP Photo/Tasmanian Department of Primary Industries, HO, File)
/ AP